Value | Category | Cases | |
---|---|---|---|
1950 | 16 |
0.6%
|
|
1953 | 19 |
0.7%
|
|
1954 | 38 |
1.3%
|
|
1955 | 13 |
0.5%
|
|
1956 | 13 |
0.5%
|
|
1957 | 105 |
3.7%
|
|
1958 | 68 |
2.4%
|
|
1959 | 143 |
5%
|
|
1960 | 136 |
4.8%
|
|
1961 | 94 |
3.3%
|
|
1962 | 170 |
6%
|
|
1963 | 152 |
5.4%
|
|
1964 | 177 |
6.2%
|
|
1965 | 156 |
5.5%
|
|
1966 | 176 |
6.2%
|
|
1967 | 209 |
7.4%
|
|
1968 | 141 |
5%
|
|
1969 | 131 |
4.6%
|
|
1970 | 159 |
5.6%
|
|
1971 | 165 |
5.8%
|
|
1972 | 59 |
2.1%
|
|
1973 | 73 |
2.6%
|
|
1974 | 46 |
1.6%
|
|
1975 | 44 |
1.5%
|
|
1976 | 6 |
0.2%
|
|
1977 | 19 |
0.7%
|
|
1978 | 11 |
0.4%
|
|
1979 | 19 |
0.7%
|
|
1980 | 26 |
0.9%
|
|
1981 | 42 |
1.5%
|
|
1982 | 23 |
0.8%
|
|
1983 | 6 |
0.2%
|
|
1984 | 7 |
0.2%
|
|
1985 | 20 |
0.7%
|
|
1986 | 73 |
2.6%
|
|
1987 | 28 |
1%
|
|
1988 | 22 |
0.8%
|
|
1989 | 10 |
0.4%
|
|
1992 | 11 |
0.4%
|
|
1995 | 13 |
0.5%
|